package com.ww.java8.fp.stream.inaction.ch05;

import java.util.Arrays;
import java.util.List;

import static java.util.Comparator.comparing;
import static java.util.stream.Collectors.toList;

public class PuttingIntoPractice {

	public static void main(String[] args) {
		Trader raoul = new Trader("Raoul", "Cambridge");
        Trader mario = new Trader("Mario","Milan");
        Trader alan = new Trader("Alan","Cambridge");
        Trader brian = new Trader("Brian","Cambridge");
		
		List<Transaction> transactions = Arrays.asList(
            new Transaction(brian, 2011, 300), 
            new Transaction(raoul, 2012, 1000),
            new Transaction(raoul, 2011, 400),
            new Transaction(mario, 2012, 710),	
            new Transaction(mario, 2012, 700),
            new Transaction(alan, 2012, 950)
        );
		
		List<Transaction> tr2011 = transactions.stream()
			.filter(transaction -> 2011 == transaction.getYear())
			.sorted(comparing(Transaction::getValue))
			.collect(toList());
		System.out.println(tr2011);
		
		List<String> cities = transactions.stream()
			.map(transaction -> transaction.getTrader().getCity())
			.distinct()
			.collect(toList());
		System.out.println(cities);
		
		List<Trader> traders = transactions.stream()
			.map(Transaction::getTrader)
			.filter(trader -> trader.getCity().equals("Cambridge"))
			.distinct()
			.sorted(comparing(Trader::getName))
			.collect(toList());
		System.out.println(traders);
	}
}
